Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '5aaadb5862f6242ef90b65d3310b3272b76b3c453f222523548a4dc5c0ff1fc8' 
  AND token = 'aTYnVvaGx40awbYNRfLc18TnZQMUWsUb5yZMQdZvSG0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00043

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}